What is supramarginal gyrus?
The largest part of the brain, called the brain, is divided into several areas called lobes. Part of the parietal lobe, located just above the temporal lobe, is called a superior gyrus. It is located near other brain areas involved in tongue and hearing and plays a role in the processing of the heard and spoken language and also as written words. Alternative brain -based alternatives consider this area to Brodmann Area 40 and sometimes refers to this name. In one study, participants underwent two tests that required to focus on phonological, sound similarities between two words or semantic similarity based on the meaning between them. Supramarginal gyrus was found to be activated in both activities. Scientists believe that although the task of reading does not require focusing on the sounds of words, this brain automatically helps in their processing phonological content.
The nearby area of the brain, Angular Gyrus, closely cooperate with supramarginGyrus for processing linguistic information. The processing of the meaning and semantics of words seems to be the domain of angular gyro, while the superior gyrus acts to determine their sound. These two gyrias are associated with parts of the brain involved in emotional processing, such as amygdala, and this connection can mediate the emotional reaction to the tongue.
Supramarginal gyrus damage can create deficits in a language known as aphasia. Wernicke's aphasia is one disorder that can be based on damage to this area and is characterized by nonsensical and abundant speech. Alternatively, lesions can lead to a state called transport sensory aphasia, which concerns problems with understanding the language to the language correctly and clearly.
Supramarginal gyrus is known as an association center in the brain because it receives input from many sensory systems. Some research suggests that this region may have important roles outside understandingher tongue. One study found that magnetically stimulating this gyrus led to the entities believed that they perceive the visual stimul for longer than in reality. These results suggest that this area can play a role in the perception of time.
Another study magnetically stimulated this gyrus and other areas of the brain, while the subjects performed a movement task that required planning. Stimulation has led to a significantly longer time for planning what hand movements to use to perform the task. Scientists believe that there may be a connection between this area and manipulating objects involving specific results.